Photodiagnosis of white spot lesions after orthodontic treatment with a quantitative light-induced fluorescence- digital system: A pilot study

Si Mook Kang, Seung Hwa Jeong, Hee Eun Kim, Baek Il Kim Kim

Research output: Contribution to journalArticle

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Abstract

Purpose: To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions. Materials and Methods: Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1% fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (δF), maximum fluorescence loss (δFmax), lesion area (area), and lesion volume (δQ). Results: All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the δF, δFmax, area, and δQ were 11.4%, 17.1%, -37.5%, and 42.1%, respectively. Shallow lesions (δFi = -15%) were better remineralized than deep lesions (δFi < -15%). The ratios of the δF, δFmax, area, and δQ parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively. Conclusion: The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.

Original languageEnglish
Pages (from-to)483-488
Number of pages6
JournalOral Health and Preventive Dentistry
Volume15
Issue number5
DOIs
Publication statusPublished - 2017 Jan 1

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Dental Caries
Orthodontics
Fluorescence
Light
Orthodontic Appliances
Fluorides
Therapeutics
Minerals
Topical Fluorides
Tooth

All Science Journal Classification (ASJC) codes

  • Dental Hygiene

Cite this

@article{5830a8d19af041cb9e3f3f59ba41dbc5,
title = "Photodiagnosis of white spot lesions after orthodontic treatment with a quantitative light-induced fluorescence- digital system: A pilot study",
abstract = "Purpose: To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions. Materials and Methods: Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1{\%} fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (δF), maximum fluorescence loss (δFmax), lesion area (area), and lesion volume (δQ). Results: All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the δF, δFmax, area, and δQ were 11.4{\%}, 17.1{\%}, -37.5{\%}, and 42.1{\%}, respectively. Shallow lesions (δFi = -15{\%}) were better remineralized than deep lesions (δFi < -15{\%}). The ratios of the δF, δFmax, area, and δQ parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively. Conclusion: The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.",
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Photodiagnosis of white spot lesions after orthodontic treatment with a quantitative light-induced fluorescence- digital system : A pilot study. / Kang, Si Mook; Jeong, Seung Hwa; Kim, Hee Eun; Kim, Baek Il Kim.

In: Oral Health and Preventive Dentistry, Vol. 15, No. 5, 01.01.2017, p. 483-488.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photodiagnosis of white spot lesions after orthodontic treatment with a quantitative light-induced fluorescence- digital system

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AU - Kang, Si Mook

AU - Jeong, Seung Hwa

AU - Kim, Hee Eun

AU - Kim, Baek Il Kim

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N2 - Purpose: To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions. Materials and Methods: Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1% fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (δF), maximum fluorescence loss (δFmax), lesion area (area), and lesion volume (δQ). Results: All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the δF, δFmax, area, and δQ were 11.4%, 17.1%, -37.5%, and 42.1%, respectively. Shallow lesions (δFi = -15%) were better remineralized than deep lesions (δFi < -15%). The ratios of the δF, δFmax, area, and δQ parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively. Conclusion: The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.

AB - Purpose: To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions. Materials and Methods: Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1% fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (δF), maximum fluorescence loss (δFmax), lesion area (area), and lesion volume (δQ). Results: All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the δF, δFmax, area, and δQ were 11.4%, 17.1%, -37.5%, and 42.1%, respectively. Shallow lesions (δFi = -15%) were better remineralized than deep lesions (δFi < -15%). The ratios of the δF, δFmax, area, and δQ parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively. Conclusion: The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.

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